Text in Zulu: Izivivinyo ezenziwa kwi-valve yenhliziyo azange zibonise ukungafani okuphawulekayo uma kuqhathaniswa ne-valves yenhliziyo kulabo abathatha indawo ye-placebo.
Translation of the previous text to Swahili (individual language):
Uchunguzi uliofanywa kwenye valve ya moyo hauonyeshe tofauti yoyote muhimu ikilinganishwa na valves ya moyo ya wale wanaotumia placebo.